TE Connectivity AMP Connectors 1776258-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1776258-3 is a 3 Position Wire to Board Terminal Block with 45° (135°) angle orientation and 0.200" (5.08mm) pitch spacing. This component belongs to the Buchanan series and features screw-leaf spring wire termination with integrated wire guard. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and procurement planning.

Substiute Parts

1776258-3

TE Connectivity AMP ConnectorsIn Stock: 7791776258-3 Datasheet

Current PartRFQ

0395490003

MolexIn Stock: 12040395490003 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of terminal block components is determined by compatibility across electrical, mechanical, and physical parameters. The primary criteria for equivalent substitution include:

Critical Matching Parameters:

• Number of positions per level (3 positions required)
• Pitch spacing (0.200" / 5.08mm nominal)
• Current and voltage ratings (10 A / 300 V minimum)
• Wire gauge compatibility (14-22 AWG)
• Mounting configuration (Through Hole)
• Operating temperature range (-55°C ~ 105°C)
• Wire termination method (Screw-based)
• RoHS compliance status

The Molex 0395490003 terminal block shares the same position count (3) and operates within compatible pitch specifications (0.197" / 5.00mm). Both components are RoHS compliant and carry MSL 1 classification. However, the substitute part contains limited specification data in available documentation, requiring direct parameter verification against application requirements before implementation.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1776258-3 is classified as obsolete, establishing the need for alternative component sourcing. The Molex 0395490003 represents an active product alternative within the terminal block category, offering continued availability and ROHS3 compliance status.

Both components share identical position configuration (3 positions), compatible pitch spacing within 0.008" tolerance (5.08mm vs. 5.00mm), and equivalent regulatory classifications (EAR99, MSL 1). The Molex component's active product status ensures ongoing manufacturing support and supply chain continuity.

Selection between these components should be based on:

1. Pitch Tolerance Verification: The 0.08mm pitch difference (5.08mm vs. 5.00mm) requires confirmation that PCB layout accommodates both specifications without rework.

2. Electrical Parameter Confirmation: Complete electrical specifications for the Molex 0395490003 must be obtained from the manufacturer datasheet to verify current, voltage, and wire gauge compatibility with the original application.

3. Mechanical Interface Validation: Mating orientation, mounting hole dimensions, and board-level clearances must be confirmed for the substitute component.

4. Regulatory Compliance Alignment: Both components meet EAR99 export classification and MSL 1 moisture sensitivity requirements.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0395490003 directly replace the TE Connectivity 1776258-3 on existing PCBs?

A: Direct replacement requires verification of pitch tolerance compatibility. The 0.08mm difference between 5.08mm and 5.00mm pitch may require PCB layout assessment. Mechanical mounting hole spacing and mating interface dimensions must be confirmed against the original design specifications.

Q: What electrical parameters must be verified for the Molex substitute?

A: Current rating, voltage rating, wire gauge compatibility, and operating temperature range must be obtained from the Molex 0395490003 datasheet and compared against the original application requirements (10 A, 300 V, 14-22 AWG, -55°C ~ 105°C).

Q: Are both components RoHS compliant?

A: Yes. The TE Connectivity 1776258-3 is RoHS Compliant, and the Molex 0395490003 is ROHS3 Compliant. Both meet current regulatory requirements for hazardous substance restrictions.

Q: What is the significance of the MSL 1 classification for both parts?

A: MSL 1 (Unlimited) indicates that both components have unlimited shelf life and do not require special moisture control during storage or handling. No baking or desiccant packaging is required.

Q: Why is the TE Connectivity part classified as obsolete?

A: Obsolete status indicates that the manufacturer has discontinued production. The Molex 0395490003 active status provides an alternative source for 3-position terminal block functionality with ongoing manufacturing support.

Q: Are there any export restrictions on either component?

A: Both components are classified as EAR99, indicating they are subject to general export administration regulations but do not require specific export licenses for most destinations.

Q: What wire termination method does the Molex substitute use?

A: Complete wire termination specifications for the Molex 0395490003 are not provided in available documentation. Manufacturer datasheet review is required to confirm screw-based termination compatibility with the original design.